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The finned balancer was discontinued sometime during the 1966 model year. It's possible (but not probable) that some VERY early 1967 engines may have had the finned balancer, but since the FIRST PRODUCTION Z28 didn't come out until early January, 1967 (Jon Mello's car), the chances are almost zero that there was one originally installed in a 302.

1967 Z28 engines never received the finned balancer. My company, CHP has rebuild dozens of original '67 302 engines, judged at the Camaro Nationals many restored and original '67 Z28's and never has one turned up on an original engine. They were used in 1966 and have been seen on the '66 L79 engines.

Have been running the national registry on these cars now for 30 years. Yep, since 1988 and all of my data shows it was never used. I hope this helps.

I don't know. All I can remember my dad saying is the car was made into a race car. I kinda remember that I was in high school like 1970-71 maybe. The number on the block from what I can see is VI220MO The number are very light, block casting 3892657 K-29-6 heads 3890462 L-13-6 . I am confused about what the balancer is. The balancer is finned. My dad worked for GM for over 30 years and my uncle work in the Tonawanda plant for almost 40 years. I remember them laughing how some cars got the wrong heads ,carburetors and transmissions. Even motors going into the wrong cars. I think you have to take with a grain of salt all these number matching cars when some of them were not made that way to begin with. Dealers back in the days changed many things if the customer wanted it added. I worked for Ford in the 70's and they use to order plain Jane cars and we would add whatever they wanted including interiors . I know there are people that put all there trust in what the NCRS says but personally I think there are way to many variables.